package com.TinyBBS.servlet;

import java.io.IOException;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class Logout
 */
public class Logout extends HttpServlet {
	private static final long serialVersionUID = 1L;

	@Override
	protected void service(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		HttpSession session = request.getSession(true);
		String uri = "Login";
		if(session.getAttribute("username")!= null){
			session.invalidate();
		}
		RequestDispatcher rd = request.getRequestDispatcher(uri);
		rd.forward(request, response);
	}

}
